You will need: all the tools needed to remove the front door upholstery and pliers.
1. Raise the glass and remove the front door upholstery (see «Removal and installation of an upholstery of a forward door»).
2. Release the latch (in the photo is shown by an arrow) lock switch rod and disconnect the rod from the lock lever.
3. Capturing by hand (or pliers if the latch is set tightly) the bent edge of the spring clip of the switch, remove the clip by moving it in the direction of the arrow...
4.... and remove the switch together with the rod from the hole in the outer door panel.
5. If you change the switch, disconnect the rod 1 from the lever of the old switch by turning it in the hole of the switch lever and install it on the new switch. Replace the spring retainer 2 if it is severely deformed or has lost elasticity.
6. Install the front door lock switch and all removed parts in the reverse order of removal. Before installation, lubricate the cylinder head of the switch with silicone grease.